Improvement in lift and force pumps



A. H. POWELL.

Lift and Force Pumps.

Patented Jan. 14; 1873.

UNITED STATES PATENT. OFFICE. I

ASHTON H. POWELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF, JOSEPH WOOD, OF RED BANK, NEW JERSEY, AND EDWIN It. BENN ET, OF NEW YORK, N. Y.

IMPROVEMENT IN LIFT AND FORCE PUMP$.

Specification forming part of Letters Patent No. 134,927, dated January 1 4, 1873.

To all whom it may concern:

Be it known that I, Asnron HENION Pow- ELL, of Philadelphia, county of Philadelphia and Stateof Pennsylvania, have invented certain Improvements in Lift and Force Pumps, of which the following is a specification:

My inventionrelates to pumps in which water is forced, on the upward movement of the bucket into a chamber, the continued flow of water being maintained on the descent of the bucket by the expansion of the air in the chamher; and the object of my invention-isto simplify the construction of the pump, reducing its first cost and rendering it more durable and easy to repair than those constructed in the ordinary manner. These objects I attain by closing the bore of the bodyA of the pump at the upper end, inserting a tube or lining, e, in the latter, passing the bucket -rod a through a stuffing-box, I), and arranging the discharge pipe or nozzle 01 at some distance below the closed end, thus converting that portion of the box within the tube or lining into an air-chamber. The air compressed in the said chamber on the upward movement of the bucket e expands on the descent of the bucket, and maintains a continued flow of water,in the same manner as the air in pumps supplied with the usual metallic casings or air-chambers, which are expensive, and, being exposed, are extremely liable to be injured. The liningz' is preferably a thin metal tube secured to and closed at the top by a plate, f,

which also covers and is secured to the top of the case, and is provided with a stuffingbox for packing the rod a. To a standard on r the plate may be hung a lever, c, for operating the bucket-rod, which is connected to the which must of itself be water-tight in order to retain its contents.

As the outlet-pipe is independent of the lining, and as all the operating parts of the pump are secured to the plate f, the whole of these parts, without altering'their relative position or disturbing the case, may be with drawn.

An opening, t, near the bottom of the case for discharging the water to prevent it from freezing, is covered by a slide or valve, u, which may be operated by a rod, w, extending above the'ground.

(Nations.-

1. The combination of the wooden case A,- lining or tube'i extending to the discharge pipe and closed at the top,-and bucket-rod extending through a stufling-box at the top of the tube.

2. The cap 01' plate f, lining z, and bucketrod a, connected together aifd adapted to and detachable from the case A, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

- A. H. POWELL.

' Witnesses:

Enn. F. BROWN, CHARLES E. Fosrnn. 

